try to fix buttons

app.py

@@ -56,6 +56,19 @@ def craft_story_from_recipe(input_str: str, recipe: str) -> None:
         raise ValueError("An error occurred while crafting the story.")
 
 
+st.markdown(
+    """
+<style>
+button {
+    height: auto;
+    padding-top: 10px !important;
+    padding-bottom: 10px !important;
+}
+</style>
+""",
+    unsafe_allow_html=True,
+)
+
 # UI
 st.title("kwest.dev")
 st.subheader("Leverage the power of storytelling for any idea. 💡")
@@ -78,7 +91,7 @@ with st.expander(label="How to present your idea to get the best story 👇", ex
 
         ✅ `I need a pitch for a new app that helps people find the best restaurants in town based on their previous feedback. I will present it to angel investors. The name of the app is "Foodie".`
 
-        ✅ `I want to present to my friends the idea of a collaborative group of people that help each other to achieve their goals. I want to motivate them to join the group.`
+        ✅ `I want to present to my friends the idea of a collaborative group of people that help each other to achieve their goals. I want to motivate them to join the group to allow people to share knowledge together and grow skills using peer-to-peer learning.`
 
         ✅ `I'm going to present a new way to manage projects to my team. I want to convince them that this new method will help us be more efficient, reduce stress, and deliver better results.`
         
@@ -92,7 +105,7 @@ with input_col:
 with btn_col:
     check_input = st.button(label="▶️", key="check_input", help="Check if the input is valid")
 
-if check_input:
+if check_input and input_str != "":
     input_is_valid = check_if_input_is_valid(input_str)
     if input_is_valid is None:
         st.error("An error occurred while checking the input. Please try again.")